1.45mm 2.28mm High Carbon Uncoated Spring Steel Wire for Mattress

Hot rolled steel is steel that has been roll-pressed at very high temperatures—over 1,700, which is above the re-crystallization temperature for most steels. This makes the steel easier to form, and resulting in products that are easier to work with. To process hot rolled steel, manufacturers first start with a large, rectangular length of metal, called a billet. The billet is heated and then sent for pre-processing, where it is flattened into a large roll. From there, it is kept at a high temperature and run through a series of rollers to achieve its finished dimensions. Steel shrinks slightly as it cools. Since hot rolled steel is cooled after processing, there is less control over its final shape, making it less suitable for precision applications. Hot rolled steel is often used in applications where minutely specific dimensions aren't crucial.

1. High strength: Carbon steel is a type of steel containing carbon elements, which has high strength and hardness and can be used to manufacture various machine parts and building materials.2. Good plasticity: Carbon steel can be processed into various shapes through forging, rolling, and other processes, and can be treated with chromium plating, hot dip galvanizing, etc. on other materials to improve corrosion resistance.3. Low price: Carbon steel is a common industrial material, which is relatively inexpensive compared to other alloy steels due to its easy availability of raw materials and simple process.

Q1: Do you offer free samples?A: Sure,we are glad to send you free samples for your evaluation.But currently we need you to kindly pay the delivery charge on your side if you'd like to have our samples.Q2:How long does your delivery time take?A:In general, our delivery time is within 7 days, and may be longer if the quantity is extremely large or special circumstances occur.Q3:Can I go to your factory to visit?A:Of course, we welcome customers from all over the world to visit our factory.Q4:Does the product have quality inspection before loading?A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.Q5:How to pack the products?A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.

Q6: How to order?
A: Buyer sends the enquery --> Buyer gets the quotation --> Order confirmation --> Buyer send the deposit --> Seller prepares goods --> Seller makes the strict inspection --> Buyer Arranges Balance Payment --> packing and delivery